Hardened teeth on the smaller sprocket of a roller chain drive are recommended if the drive ratio is four to one or greater or if the smaller sprocket has 24 teeth or less and is running at a speed of over 600 rpm.
features
Hardened teeth sprockets afford longer chain and sprocket life
Tolerances meet or exceed ANSI standards
Manufactured of high carbon steel
Precise machining and processes ensure consistent finish and high quality
Chain rows are parallel and precisely spaced to increase longevity of sprocket and chain
Bores are concentric to pitch line, minimizing run out
Interchangeable with other manufacturers’ Taper bushings
Stocked Heat Treat
Caliper Diameter
3.1992 in
Width Across Teeth
1 in
Outside Dia. [Min]
3.9200 in
Pitch Dia.
3.599 in
Bore Type
Bushed
No. of Strands Across
1
Bushing Type
Taper Lock
Type
B
O.D.
3.92 in
Construction Internal
Solid
Bushing Bore [Min]
0.5 in
No. of Teeth
18
Hub Projection
0.66 in
Material External Use
Steel
Bore Size [Max]
1.625 in
Bushing Bore Size [Max]
1.625 in
Sprocket Style
B
Bore Size [Min]
0.5 in
Overall Length Less Threads
N/A
Pitch Diameter
3.599 in
Bushing Bore [Max]
1 5/8 in
Hub Dia.
2.7813 in
Hub O.D.
2.781 in
Chain Sprocket Number
50
Chain No.
50
Chain Pitch
0.625 in
Bushing Bore Size [Min]
0.5 in
Material
Steel
Bushing Series
1610
Inch/Metric
Inch
No. of Teeth Rows Strands
1
Hardened Teeth
With Hardened Teeth
Overall Length
1 5/8 in
Martin No.
50BTB18H
Outside Dia.
3.92 in
Tooth Width
0.343 in
Single Strand Tooth Thickness
0.343 in
Hub Length
0.66 in
Material Internal Use
Carbon Steel
Length Through Bore
1 in
Chain Sprocket Pitch
0.625 in
Weight
0.94 LB
EAN or UPC
697950043203
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